Closed
Description
snippet:
trait Trait {
fn static_method2(, ) -> i32 { x + y }
fn baz<'a>(&self, x: &'a i32) -> &'a i32 { x }
}
struct F;
struct S(F);
impl Trait for S {
reuse <S as Trait>::static_method2 { (self); // oopsie
reuse Trait::baz { &self.0 }
}
}
Version information
rustc 1.77.0-nightly (89110dafe 2024-01-13)
binary: rustc
commit-hash: 89110dafe79621fa07d6cd7c8493dd1d0a83cfaf
commit-date: 2024-01-13
host: x86_64-unknown-linux-gnu
release: 1.77.0-nightly
LLVM version: 17.0.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error: expected argument name, found `,`
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:3:23
|
3 | fn static_method2(, ) -> i32 { x + y }
| ^ expected argument name
error[E0425]: cannot find value `x` in this scope
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:3:36
|
3 | fn static_method2(, ) -> i32 { x + y }
| ^ help: a unit struct with a similar name exists: `F`
...
7 | struct F;
| --------- similarly named unit struct `F` defined here
error[E0425]: cannot find value `y` in this scope
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:3:40
|
3 | fn static_method2(, ) -> i32 { x + y }
| ^ help: a unit struct with a similar name exists: `F`
...
7 | struct F;
| --------- similarly named unit struct `F` defined here
error[E0658]: functions delegation is not yet fully implemented
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:12:5
|
12 | reuse Trait::baz { &self.0 }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: see issue #118212 <https://github.com/rust-lang/rust/issues/118212> for more information
= help: add `#![feature(fn_delegation)]` to the crate attributes to enable
error[E0658]: functions delegation is not yet fully implemented
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:11:5
|
11 | / reuse <S as Trait>::static_method2 { (self); // oppsie
12 | | reuse Trait::baz { &self.0 }
13 | | }
| |_^
|
= note: see issue #118212 <https://github.com/rust-lang/rust/issues/118212> for more information
= help: add `#![feature(fn_delegation)]` to the crate attributes to enable
warning: anonymous parameters are deprecated and will be removed in the next edition
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:3:22
|
3 | fn static_method2(, ) -> i32 { x + y }
| ^ help: try naming the parameter or explicitly ignoring it: `_: (`
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
= note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
= note: `#[warn(anonymous_parameters)]` on by default
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:14:2
|
14 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs`
thread 'rustc' panicked at compiler/rustc_middle/src/ty/generics.rs:233:25:
index out of bounds: the len is 0 but the index is 0
stack backtrace:
0: 0x7f2c60f9b7e6 - std::backtrace_rs::backtrace::libunwind::trace::h4f92a9ab1e969130
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7f2c60f9b7e6 - std::backtrace_rs::backtrace::trace_unsynchronized::hff5adbaff3a8cfb8
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f2c60f9b7e6 - std::sys_common::backtrace::_print_fmt::h9d3e0e63f6f89eaf
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7f2c60f9b7e6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2d31e6c8aa8ef934
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f2c60fedec0 - core::fmt::rt::Argument::fmt::hd4eaf83b012a42ab
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/core/src/fmt/rt.rs:142:9
5: 0x7f2c60fedec0 - core::fmt::write::hb507e806b3ae16c4
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/core/src/fmt/mod.rs:1120:17
6: 0x7f2c60f8f14f - std::io::Write::write_fmt::h203bf95b6a67c7a0
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/io/mod.rs:1810:15
7: 0x7f2c60f9b5c4 - std::sys_common::backtrace::_print::h2f732cf10966ea1c
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f2c60f9b5c4 - std::sys_common::backtrace::print::hef45416e244164df
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f2c60f9e357 - std::panicking::default_hook::{{closure}}::h1a73802a0a993acf
10: 0x7f2c60f9e0b9 - std::panicking::default_hook::h34548737700c4b4d
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/panicking.rs:292:9
11: 0x7f2c5dd4e80c - std[d6f21989bfff4f42]::panicking::update_hook::<alloc[21b544e6cc75226b]::boxed::Box<rustc_driver_impl[bce72efeea91a1de]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f2c60f9eaa6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb0b823449909a650
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/alloc/src/boxed.rs:2030:9
13: 0x7f2c60f9eaa6 - std::panicking::rust_panic_with_hook::h60e4310ab2a16e4e
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/panicking.rs:785:13
14: 0x7f2c60f9e7f2 - std::panicking::begin_panic_handler::{{closure}}::h61737518028fa2b2
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/panicking.rs:659:13
15: 0x7f2c60f9bce6 - std::sys_common::backtrace::__rust_end_short_backtrace::h7870f48bedce1dac
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys_common/backtrace.rs:171:18
16: 0x7f2c60f9e550 - rust_begin_unwind
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/panicking.rs:647:5
17: 0x7f2c60fea5c5 - core::panicking::panic_fmt::h01c3f6a1955aca70
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/core/src/panicking.rs:72:14
18: 0x7f2c60fea802 - core::panicking::panic_bounds_check::h25b685aaca1db28e
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/core/src/panicking.rs:208:5
19: 0x7f2c6033b750 - <rustc_middle[63813a132a817cd4]::ty::generics::Generics>::type_param.cold.0
20: 0x7f2c5f263655 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_field
21: 0x7f2c5fadc938 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
22: 0x7f2c5fadc73f - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
23: 0x7f2c5f9f1065 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_block_with_expected
24: 0x7f2c5fadc049 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
25: 0x7f2c5fb69770 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_argument_types
26: 0x7f2c5fa0ff0a - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_call
27: 0x7f2c5fadbc39 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
28: 0x7f2c5f9f1065 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_block_with_expected
29: 0x7f2c5fadc049 - <rustc_hir_typeck[995280b49f849d23]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
30: 0x7f2c5f655848 - rustc_hir_typeck[995280b49f849d23]::check::check_fn
31: 0x7f2c5f2d3f02 - rustc_hir_typeck[995280b49f849d23]::typeck
32: 0x7f2c5f2d3289 - rustc_query_impl[f8b584d7216df600]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[f8b584d7216df600]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[63813a132a817cd4]::query::erase::Erased<[u8; 8usize]>>
33: 0x7f2c5f0bfdf9 - rustc_query_system[13649e0efc92577a]::query::plumbing::try_execute_query::<rustc_query_impl[f8b584d7216df600]::DynamicConfig<rustc_query_system[13649e0efc92577a]::query::caches::VecCache<rustc_span[6e44e330265df079]::def_id::LocalDefId, rustc_middle[63813a132a817cd4]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[f8b584d7216df600]::plumbing::QueryCtxt, false>
34: 0x7f2c5f0bfa90 - rustc_query_impl[f8b584d7216df600]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
35: 0x7f2c5f5e99cc - <rustc_middle[63813a132a817cd4]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[f88d56455d931b67]::check_crate::{closure#6}>::{closure#0}
36: 0x7f2c5f5e82c4 - rustc_hir_analysis[f88d56455d931b67]::check_crate
37: 0x7f2c5fa94419 - rustc_interface[37b6cebe1bce16]::passes::analysis
38: 0x7f2c5fa9405f - rustc_query_impl[f8b584d7216df600]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[f8b584d7216df600]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[63813a132a817cd4]::query::erase::Erased<[u8; 1usize]>>
39: 0x7f2c5ffcd040 - rustc_query_system[13649e0efc92577a]::query::plumbing::try_execute_query::<rustc_query_impl[f8b584d7216df600]::DynamicConfig<rustc_query_system[13649e0efc92577a]::query::caches::SingleCache<rustc_middle[63813a132a817cd4]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[f8b584d7216df600]::plumbing::QueryCtxt, false>
40: 0x7f2c5ffcce47 - rustc_query_impl[f8b584d7216df600]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
41: 0x7f2c5fd343ed - rustc_interface[37b6cebe1bce16]::interface::run_compiler::<core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>, rustc_driver_impl[bce72efeea91a1de]::run_compiler::{closure#0}>::{closure#0}
42: 0x7f2c5fff3546 - std[d6f21989bfff4f42]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[37b6cebe1bce16]::util::run_in_thread_with_globals<rustc_interface[37b6cebe1bce16]::util::run_in_thread_pool_with_globals<rustc_interface[37b6cebe1bce16]::interface::run_compiler<core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>, rustc_driver_impl[bce72efeea91a1de]::run_compiler::{closure#0}>::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>
43: 0x7f2c5fff3373 - <<std[d6f21989bfff4f42]::thread::Builder>::spawn_unchecked_<rustc_interface[37b6cebe1bce16]::util::run_in_thread_with_globals<rustc_interface[37b6cebe1bce16]::util::run_in_thread_pool_with_globals<rustc_interface[37b6cebe1bce16]::interface::run_compiler<core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>, rustc_driver_impl[bce72efeea91a1de]::run_compiler::{closure#0}>::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a757d3bbb7cc29b8]::result::Result<(), rustc_span[6e44e330265df079]::ErrorGuaranteed>>::{closure#1} as core[a757d3bbb7cc29b8]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
44: 0x7f2c60fa89d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc62465ce3696edbb
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/alloc/src/boxed.rs:2016:9
45: 0x7f2c60fa89d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2898b364df1453ed
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/alloc/src/boxed.rs:2016:9
46: 0x7f2c60fa89d5 - std::sys::unix::thread::Thread::new::thread_start::hefe0ce868779f0f1
at /rustc/89110dafe79621fa07d6cd7c8493dd1d0a83cfaf/library/std/src/sys/unix/thread.rs:108:17
47: 0x7f2c5ae6f9eb - <unknown>
48: 0x7f2c5aef37cc - <unknown>
49: 0x0 - <unknown>
error: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.77.0-nightly (89110dafe 2024-01-13) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [typeck] type-checking `<impl at /tmp/icemaker_global_tempdir.9KzAYMOKvvyy/rustc_testrunner_tmpdir_reporting.iFAbOoiLuUqy/mvce.rs:10:1: 10:17>::static_method2::baz`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 6 previous errors; 1 warning emitted
Some errors have detailed explanations: E0425, E0601, E0658.
For more information about an error, try `rustc --explain E0425`.